Thermo Scientific™ OptiSpray™ Emitters are exchangeable electrospray ionization nano and capillary emitters that seamlessly integrate with the Thermo Scientific™ OptiSpray™ Ion Source and Cartridges. OptiSpray emitters provide high sensitivity, precision, and robustness without the challenges presented when handling traditional ESI emitters. In addition, OptiSpray emitters can be readily exchanged, significantly increasing column lifetime. The tapered emitter comes standard with all OptiSpray Cartridges while the optional pulled emitter is available for enhancing sensitivity.